I take my coffee black--add literally anything and I can't drink it. All the super-sweet caramel-chocolate-loaded whipped-cream topped things that somehow still pass as "coffee" are for the weak, dammit! But then again, I tend to go the extra mile and stick to imported blends (generally I prefer Costa Rican, Cuban, Nicaraguan, Peruvian, Kenyan, Rwandan, and Ecuadorian blends, to name a few)--ideally fair-trade if I can get my hands on it, though this isn't often the case. Blue Mountain is a pretty damn fine blend as far as big commercial brands. I think my preference to black coffee (as well as my joking ripping on the fancier preparation methods, but that's mostly because I physically have trouble drinking sweet coffee, my gag reflex hates the stuff) has more to do with me simply having a preference for well-balanced blends and roasts that don't particularly need anything added to them. A lot of my South American blends have sweetness and nuttiness and sometimes chocolate-flowery tones depending on what brand and blend--don't even need to add anything to it at that point.
Tea I much prefer as a more everyday drink since I have far more options as far as taste/temperature/combination than I do with coffee, since I can only take coffee black and hot--though as time wears on and I find myself watching a little more what I intake I'm favoring taking my teas just as they are without sugar--I'll sweeten with honey or milk more often than not. Earl Grey with milk is my essence of life, as are minted yerba mate and lemon-licorice teas.
AS FOR BOOZE
Love me a good hard cider--really doesn't even matter the brand, I've enjoyed all the ones I've tried for different reasons. Woodchuck and Strongbow are my go-to picks at the moment, though. I enjoy a good scotch now and then, but I am a bit picky and much prefer to go top-shelf wherever possible--cheap or too-young scotch is just awful.
Being an enjoyer of scotch, I do have a similar and occasional fondness for good bourbon--being from Kentucky, it's not much of a surprise. But I can very much agree with your sentiment of smokey mouthwash if, like scotch, it's a low-shelf brand or age.
I have to be honest--I'm still waiting on the "a nice good cold beer is refreshing as hell" part of drinking the stuff. I've tried many a beer, and the only ones I can really stand and enjoy are the very dark ones--dunkels, Guiness, etc. Lighter beers I'm beginning to warm to, as I know it's a taste one has to grow to enjoy, but it is a bit of having to force myself to finish one once I open it.
It kinda sucks, honestly--here I am with the natural Irish/German/Nordic/Scottish tolerance, but I'm too thin of frame and too high of metabolism for it to actually do me any good! I'd be better off in this regard if I didn't absolutely loathe being really drunk (or any state of mind where my wits and body control drop off--I hate being sober of mind but sloppy of body), but I don't have much longer before my metabolism slows down if I'm anything like my folks.